115625320421 has 16 divisors (see below), whose sum is σ = 124896522240. Its totient is φ = 106408208640.

The previous prime is 115625320411. The next prime is 115625320487. The reversal of 115625320421 is 124023526511.

It is a cyclic number.

It is not a de Polignac number, because 115625320421 - 2⁶ = 115625320357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115625320411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23503400 + ... + 23508318.

It is an arithmetic number, because the mean of its divisors is an integer number (7806032640).

Almost surely, 2^115625320421 is an apocalyptic number.

It is an amenable number.

115625320421 is a deficient number, since it is larger than the sum of its proper divisors (9271201819).

115625320421 is a wasteful number, since it uses less digits than its factorization.

115625320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 115625320421 its reverse (124023526511), we get a palindrome (239648846932).

The spelling of 115625320421 in words is "one hundred fifteen billion, six hundred twenty-five million, three hundred twenty thousand, four hundred twenty-one".